1. rhizomatik
  2. elgg_firegpg

Overview

Dependencies:

 elggpg module:

  http://code.lorea.org/elggpg
  
Users need FireGPG extension for Firefox.

 Source code: 

  https://github.com/lorea/firegpg

 Extension package:

  https://lorea.org/firegpg/firegpg.xpi